There are several power meters that will work on Campagnolo cranksets:
Crankset Power Meters
This power2max crankset comes with Campy crank arms and power meter spider. You can purchase the power meter with Campagnolo 12-speed chainrings, or use your own 11- or 12-speed chainrings if you already have them.
The SRM Campagnolo Power Meter comes with 11-speed chainrings, making it compatible with 11-speed Campagnolo drivetrains. For compatibility with 12-speed Campagnolo drivetrains, you must use Campagnolo 12-speed chainrings.
Pros: Accurate, reliable, measures both legs
Cons: More expensive, more work to install
Left Crank Arm Power Meter
Stages Cycling makes left-side crank arm power meters for Campy Chorus, Record and Super Record. These power meters measures left leg power only.
Please note, whenever you are installing a left side power meter crank arm, you need to confirm you have 10mm of clearance between the left crank arm and the chainstay in order for the sensor to clear. Please see the image below.
Pros: More affordable than a crankset, easy to install, don’t have to change crankset
Cons: Measures left leg power only
Power Meter Pedals
Power meter pedals can be installed on any crankset. We have several models to choose from.
Pros: Easy to install, works on any bike, can move from bike to bike, don’t have to change crankset
Cons: Done